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derekaxtell2016
Participant
April 22, 2024
Question

Missing Optics correction for 100-400 f4.5-5.6L IS USM

  • April 22, 2024
  • 1 reply
  • 113 views

There is no Optics correction for this lens when using either a 1.4 or 2.0 teleconvertor only for the IS II USM model

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1 reply

Legend
April 22, 2024

There are three versions of the 2x and either two or three of the 1.4x. I would just use the standalone profile, it probably isn't much different than with the converter except possibly some added light falloff in the corners.